<template>
  <div class="DetailNavBar">
    <nav-bar>
      <div slot="left" class="backImg" @click="backClick">
        <img src="@/assets/img/common/back.svg" alt />
      </div>
      <div slot="center" class="title">
        <div
          v-for="(item,index) in titles"
          :key="index"
          class="title-item"
          :class="{active:index === currentIndex}"
          @click="titleClick(index)"
        >{{item}}</div>
      </div>
    </nav-bar>
  </div>
</template>

<script>
import NavBar from '@/components/common/navbar/NavBar'

export default {
  props: {

  },
  data () {
    return {
      titles: ['商品', '参数', '评论', '推荐'],
      currentIndex: 0
    }
  },
  created () {

  },
  methods: {
    titleClick (index) {
      this.currentIndex = index
      this.$emit('titleClick', index)
    },
    backClick () {
      this.$router.back()
      // this.$router.go(-1)
    }
  },
  components: {
    NavBar
  }
}
</script>

<style scoped>
.title {
  display: flex;
}
.title-item {
  flex: 1;
}
.active {
  color: var(--color-tint);
}
.backImg {
  display: flex;
}
</style>
